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Denosumab in patients with bone metastases from renal-cell carcinoma treated with anti-angiogenic therapy: a retrospective study from the GETUG (Groupe Etude des Tumeurs Uro Genitales)

Date

09 Oct 2016

Session

Poster display

Presenters

Aline Guillot

Citation

Annals of Oncology (2016) 27 (6): 266-295. 10.1093/annonc/mdw373

Authors

A. Guillot1, C. Joly2, P. Barthelemy3, E. Meriaux4, S. Negrier5, D. Pouessel6, C. Chevreau7, H. Mahammedi8, N. Houede9, G. Roubaud10, G. Gravis11, S. Tartas12, L. Albiges13, C. Vassal1, M. Oriol1, F. Tinquaut14, S. Espenel15, S. Culine6, K. Fizazi13

Author affiliations

  • 1 Medical Oncology, Institut de Cancérologie de la Loire, 42271 - Saint Priest en Jarez/FR
  • 2 Val De Marne, CHU Henri Mondor, 94000 - Créteil/FR
  • 3 Medical Oncology, C.H.U. Strasbourg-Nouvel Hopital Civil, 67000 - Strasbourg/FR
  • 4 Medical Oncology, Centre Francois Baclesse, 14000 - Caen/FR
  • 5 Dept. Of Oncology, Centre Léon Bérard, 69008 - Lyon/FR
  • 6 Medical Oncology, Hôpital St. Louis, 75010 - Paris/FR
  • 7 Oncology, Centre Claudius-Regaud, 31059 - Toulouse/FR
  • 8 Medical Oncology, Centre Jean Perrin, 63000 - Clermont-Ferrand/FR
  • 9 Medical Oncology, CHU Nimes, Caremeau, 30029 - Nimes/FR
  • 10 Medical Oncology, Institute Bergonié, 33000 - Bordeaux/FR
  • 11 Medical Oncology, Institute Paoli Calmettes, 13009 - Marseille/FR
  • 12 Medical Oncology, Hospice Civil de Lyon centre Hospitalier Lyon Sud, Lyon/FR
  • 13 Dept. Of Medicine, Institut Gustave Roussy, 94805 - Villejuif/FR
  • 14 Biostatistics, Institut de Cancérologie de la Loire, 42271 - Saint Priest en Jarez/FR
  • 15 Oncology Radiotherapy, Institut de Cancérologie de la Loire, 42271 - Saint Priest en Jarez/FR
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Resources

Background

Metastatic renal-cell carcinoma (mRCC) treatment relies on anti-angiogenic therapies. Bone metastases occur in nearly 30% of mRCC and can induce symptomatic skeletal-events (SSE) such as pain requiring radiotherapy, pathologic fractures, and spinal cord compression. SSE can be prevented using bone-targeted agents, e.g. bisphosphonates or denosumab. Data about denosumab and anti-angiogenic combination are scarce.

Methods

This multicenter retrospective study led by GETUG included mRCC patients (pts) who received anti-angiogenic therapies associated with denosumab from January 2013 to December 2015. The primary endpoint was toxicity related to denosumab, especially osteonecrosis of the jaw (ONJ) and hypocalcaemia.

Results

37 pts were identified and 36 analyzed. The mean age was 60.9 year-old (range 42-81). Twenty-four pts (68%) had an odontological consultation before denosumab introduction and 20 pts (58.3%) had a dental panoramic radiography. Five pts (13.9%) developed an ONJ, among them 3 had a dental extraction while on denosumab treatment. Only one out of the 5 pts has completely recovered from his ONJ. No grade 3-4 hypocalcaemia was reported. SSE occurred in 22 pts (61.1%) including bone pain requiring radiation, clinical fractures, and spinal compression in 22, 3, and 2 pts, respectively.

Conclusions

In this real life population, the incidence of SSE was very high in mRCC pts with bone metastases. The combination of denosumab with anti-angiogenic drugs was associated with a high incidence of ONJ that may have been favored by dental extraction while on treatment. The present study underlines the need to improve strategies to prevent the onset of SSE in this population of pts.

Clinical trial identification

Legal entity responsible for the study

N/A

Funding

GETUG

Disclosure

A. Guillot: board PFIZER. S. Negrier: honoraria from Pfizer, Novartis et BMS. D. Pouessel: Board: roche, astellas, Lilly, Novartis, Sanofi Advisory: MSD, AstraZeneca. Speaker : Astellas, Janssen, Boehringer-ingelheim, Sanofi. C. Chevreau: board advisory: Pharmamar Inc, Novartis Inc. L. Albiges: consultaant or advisory role: novartis, pfizer, amgen, BMS, Bayer, Sanofi, Cerulean. K. Fizazi: consultant/advisor for Amgen Inc.,Novartis,Clovis, Pfizer, CSL, Behring, and Bayer- GlaxoSmithKline, and Genentech- speakers' bureau for Genomic Health research funding from Amgen Inc., Novartis, Bayer, and Puma. All other authors have declared no conflicts of interest.

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